EP3388754A1 - Belüftungssystem und steuergerät - Google Patents

Belüftungssystem und steuergerät Download PDF

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Publication number
EP3388754A1
EP3388754A1 EP15910179.9A EP15910179A EP3388754A1 EP 3388754 A1 EP3388754 A1 EP 3388754A1 EP 15910179 A EP15910179 A EP 15910179A EP 3388754 A1 EP3388754 A1 EP 3388754A1
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EP
European Patent Office
Prior art keywords
ventilation
apparatuses
operation power
control unit
amount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15910179.9A
Other languages
English (en)
French (fr)
Other versions
EP3388754A4 (de
Inventor
Masami Yasuda
Masashi ASHINO
Hidemoto Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3388754A4 publication Critical patent/EP3388754A4/de
Publication of EP3388754A1 publication Critical patent/EP3388754A1/de
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a ventilation system that includes a plurality of ventilation apparatuses and a controller that controls the ventilation apparatuses and to the controller.
  • a conventional ventilation apparatus as described in Patent Literature 1 performs for product protection a protection operation that interrupts a supply air fan or executes an intermittent operation control that repeats operation and interruption of the supply air fan alternately in accordance with a state detected by a sensor that is installed inside the apparatus and detects condensation or high humidity.
  • Patent Literature 1 Japanese Patent Application Laid-open No. 2009-293880
  • Patent Literature 1 poses a problem that the amount of outside air introduced decreases during the interruption or the intermittent interruption of the supply air fan and this causes degradation in air environment in a room. Even if another ventilation apparatus is operating in the same room, a necessary amount of ventilation cannot be obtained unless the amount of ventilation from the apparatus interrupted for the protection operation is made up for.
  • the present invention has been achieved in view of the above, and an object of the present invention is to provide a ventilation system that can inhibit a reduction in amount of ventilation in a room space when any of ventilation apparatuses is interrupted.
  • an aspect of the present invention provides a ventilation system including: a plurality of ventilation apparatuses that have operation power in a plurality of notches; and a controller to control the ventilation apparatuses.
  • the controller comprises a control unit to perform control such that, when interruption of any of the ventilation apparatuses is detected, operation power of a ventilation apparatus that is not interrupted among the ventilation apparatuses is raised and, when resolution of the interruption of the any of the ventilation apparatuses is detected, the operation power of the ventilation apparatus is restored to the operation power used before raising.
  • the ventilation system according to the present invention produces an effect of enabling inhibition of a reduction in amount of ventilation in a room space when any of ventilation apparatuses is interrupted.
  • FIG. 1 is a diagram illustrating the configuration of a ventilation system according to a first embodiment of the present invention.
  • Ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are placed in the ventilation system.
  • Control circuits 2a, 2b, 2c, 2d, and 2e are integrated into the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e, respectively.
  • the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e include fans 5a, 5b, 5c, 5d, and 5e that generate airflows, respectively.
  • a central controller 3 that is a controller that controls the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is connected to the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e with a communication cable 4. While FIG. 1 illustrates an example in which the five ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are connected, the number of ventilation apparatuses is not limited to five and may be any number as long as it is two or more.
  • Each of the control circuits 2a, 2b, 2c, 2d, and 2e which is integrated into a corresponding one of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e, detects a failure of a corresponding one of the fans 5a, 5b, 5c, 5d, and 5e.
  • a corresponding one of the control circuits 2a, 2b, 2c, 2d, and 2e displays the failure as an abnormality in a corresponding one of local remote controllers 6a, 6b, 6c, 6d, and 6e and communicates abnormality information, together with a corresponding one of address numbers A, B, C, D, and E that are assigned to the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e, to the central controller 3 via the communication cable 4.
  • a corresponding one of the control circuits 2a, 2b, 2c, 2d, and 2e notifies the central controller 3 of the failure occurred in the corresponding one of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • the address number assigned to the ventilation apparatus 1a is A; the address number assigned to the ventilation apparatus 1b is B; the address number assigned to the ventilation apparatus 1c is C; the address number assigned to the ventilation apparatus 1d is D; and the address number assigned to the ventilation apparatus 1e is E.
  • the letters A, B, C, D, and E in FIG. 1 in frames that represent the control circuits 2a, 2b, 2c, 2d, and 2e signify the respective address numbers assigned.
  • the central controller 3 can receive information from the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e, which are connected to the communication cable 4. The central controller 3 can also transmit commands to the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e via the communication cable 4.
  • Each of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e also includes a unit that changes the amount of airflow provided by a fan motor of a corresponding one of the fans 5a, 5b, 5c, 5d, and 5e.
  • the amounts of airflow can be changed by an operation using the local remote controllers 6a, 6b, 6c, 6d, and 6e or the central controller 3.
  • the central controller 3 can also provide a command to perform control at a fixed amount of airflow.
  • FIG. 2 is a diagram illustrating for each model a relationship between operation power and the amounts of airflow of the ventilation apparatuses included in the ventilation system according to the first embodiment. Numerical values in FIG. 2 represent the amounts of airflow in m 3 /h.
  • Each of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is of any one of models T1, T2 or T3. Any model of the ventilation apparatus can be operated in three levels of operation power, namely "high”, “middle”, and “low” as illustrated in the table of FIG. 2 . That is, the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e each have operation power in a plurality of notches.
  • the power can be adjusted to "high”, “middle”, or “low” using the local remote controllers 6a, 6b, 6c, 6d, and 6e and the central controller 3.
  • the amount of airflow is typically set to a rated amount of airflow for "middle” operation power, to an amount of airflow greater than the "middle” operation power, which is the rated amount of airflow, for "high” operation power, and to an amount of airflow smaller than the "middle” operation power, which is the rated amount of airflow, for "low” operation power.
  • the amounts of airflow produced by a ventilation apparatus of the model T1 are 600 m 3 /h for the "high” operation power, 500 m 3 /h for the "middle” operation power, and 400 m 3 /h for the "low” operation power.
  • the amounts of airflow produced by a ventilation apparatus of the model T2 are 1000 m 3 /h for the "high” operation power, 800 m 3 /h for the "middle” operation power, and 600 m 3 /h for the "low” operation power.
  • the amounts of airflow produced by a ventilation apparatus of the model T3 are 500 m 3 /h for the "high” operation power, 300 m 3 /h for the “middle” operation power, and 200 m 3 /h for the "low” operation power.
  • the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e that configure the ventilation system, together with the central controller 3, are of multiple models used in combination. Models are often classified according to their rated amounts of airflow.
  • ventilation apparatuses of the model T1 are used as the ventilation apparatuses 1a and 1d; a ventilation apparatus of the model T2 is used as the ventilation apparatus 1b; and ventilation apparatuses of the model T3 are used as the ventilation apparatuses 1c and 1e.
  • Ventilation apparatuses having different rated amounts of airflow are generally used in combination to configure a ventilation system in accordance with the size of a room space.
  • a ventilation system may be configured from ventilation apparatuses of an identical model alone.
  • FIG. 3 is a functional block diagram of the central controller in the ventilation system according to the first embodiment.
  • the central controller 3 includes a communication unit 32 that is a communication interface with the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e and a control unit 33 that performs a steady-state operation when all the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are operated and performs a non-steady-state mode operation when any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted.
  • a function of the control unit 33 is achieved with a processing circuit 19. That is, the central controller 3 includes the processing circuit 19, which performs the non-steady-state mode operation when any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted.
  • the processing circuit 19 may be dedicated hardware or an arithmetic unit that executes a program stored in a memory.
  • FIG. 4 is a diagram illustrating a configuration with which a function of the central controller in the ventilation system according to the first embodiment is achieved with hardware.
  • a program 19a that achieves the control unit 33 is integrated into the processing circuit 19 in the form of a logical circuit.
  • a communication device 41 is a device that achieves the communication unit 32.
  • FIG. 5 is a diagram illustrating a configuration with which a function of the central controller in the ventilation system according to the first embodiment is achieved with software.
  • the processing circuit 19 includes an arithmetic unit 191 that executes the program 19a, a memory 192 that the arithmetic unit 191 uses as a work area, and a storage device 193 that stores the program 19a.
  • the control unit 33 is achieved when the arithmetic unit 191 loads the program 19a, which is stored in the storage device 193, onto the memory 192 and executes the program 19a.
  • the software or firmware is described in a program language and stored in the storage device 193.
  • the processing circuit 19 achieves a function of the control unit 33 by reading and executing the program 19a, which is stored in the storage device 193. That is, the central controller 3 includes the storage device 193 for storing the program 19a, which, when executed by the processing circuit 19, results in execution of steps of performing the steady-state operation when all the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are operated and performing the non-steady-state mode operation when any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted.
  • the program 19a causes a computer to execute a procedure and a method of the control unit 33.
  • the communication device 41 is a device that achieves the communication unit 32.
  • control unit 33 may be achieved by dedicated hardware and others may be achieved by software or firmware.
  • some of the functions of the control unit 33 can be achieved using a processing circuit in the form of dedicated hardware, and the remaining functions of the control unit 33 can be achieved by a processing circuit reading and executing a program stored in a memory.
  • the processing circuit 19 can achieve each of the functions described above using hardware, software, firmware, or a combination of them.
  • FIG. 6 is a flowchart illustrating a flow of an operation of the ventilation system according to the first embodiment.
  • the control unit 33 provides in step S11 a command to operate at the "middle" operation power to the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e to perform the steady-state operation.
  • the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are operated at the "middle" operation power in the steady state; thus, the amount of ventilation provided into the room space is 2400 m 3 /h in total.
  • the control unit 33 determines in step S12 whether or not any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted. If none of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted, no is selected in step S12 and the flowchart proceeds to step S11, where the steady-state operation is performed. If any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted, yes is selected in step S12 and the flowchart proceeds to step S13.
  • the control unit 33 transmits in step S13 a command to raise the operation power by one level to the operating ventilation apparatus(es) among the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e. That is, the control unit 33 causes the operating ventilation apparatus(es) among the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e to raise the operation power by one level. In this manner, the ventilation system performs in step S14 the non-steady-state mode operation.
  • the control unit 33 determines in step S15 whether resolution of the interruption of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is detected. If the interruption of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is not resolved, no is selected in step S15 and the flowchart proceeds to step S14, where the non-steady-state mode operation is continued. If the interruption of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is resolved, yes is selected in step S15 and the flowchart proceeds to step S16.
  • the control unit 33 transmits in step S16 a command to lower the operation power by one level to the ventilation apparatus(es) caused to change the operation power in step S13 among the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e. That is, the control unit 33 restores the operation power of the ventilation apparatus(es) caused to change the operation power in step S13 among the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e to the operation power used before changing. In this manner, the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are caused in step S17 to operate at the "middle" operation power and the ventilation system returns to the steady-state operation. After step S17, the flowchart proceeds to step S12.
  • the control circuit 2a detects the abnormality in the fan 5a, displays the abnormality information in the local remote controller 6a, and transmits the abnormality information to the central controller 3 via the communication cable 4.
  • the interruption of the ventilation apparatus 1a leads to a reduction in amount of airflow for ventilation in the room space by 500 m 3 /h, which is the rated amount of airflow of the ventilation apparatus 1a, causing the amount of ventilation supplied into the room to be 1900 m 3 /h.
  • the central controller 3 determines that the number of connected ventilation units is reduced and transmits a command to the ventilation apparatuses 1b, 1c, 1d, and 1e to perform a non-steady-state operation mode in which the amounts of airflow provided by the ventilation apparatuses 1b, 1c, 1d, and 1e that have no abnormality are raised by one level.
  • a command to raise the operation power of the ventilation apparatuses 1b, 1c, 1d, and 1e by one level from "middle" to "high” is transmitted.
  • the amount of airflow supplied into the room becomes 2600 m 3 /h; thus, a state in which the amount of ventilation supplied into the room is lower than the amount of ventilation of the steady state operation is resolved even though the ventilation apparatus 1a is interrupted.
  • the control unit 33 transmits a command to the ventilation apparatuses 1b, 1c, 1d, and 1e that have not generated abnormality information to restore the operation power of the ventilation apparatuses 1b, 1c, 1d, and 1e that has been raised to "high" to the "middle” operation power.
  • the amount of airflow becomes 2400 m 3 /h, which is the steady state condition, and a necessary and sufficient amount of ventilation is provided.
  • the amount of airflow of a remaining ventilation apparatus that can continue the ventilation operation is temporarily raised so as to inhibit a reduction in amount of ventilation in the room space, thereby room comfort can be maintained.
  • the ventilation apparatus 1a can transmit stop information or intermittent operation control information to the central controller 3, which then raises the operation power of the remaining ventilation apparatuses 1b, 1c, 1d, and 1e that have not stopped or are not experiencing intermittent operation control, thereby a reduction in amount of ventilation in a room space can be inhibited.
  • the temporary stop or the intermittent operation control of the ventilation apparatus 1a is ended, and thereby the amount of airflow is restored to a level provided before the control.
  • the control unit 33 restores the amounts of airflow of the ventilation apparatuses 1b, 1c, 1d, and 1e that have been temporarily raised by one level to the amounts of airflow provided before raising, and thereby can satisfy both product protection against condensation or high humidity when it is detected and a reduction in amount of ventilation in a room space.
  • the central controller 3 can detect the interruption of the transmission of the electric power or the power outage and raise the amounts of airflow by one level of the other ventilation apparatuses that are energized and operated normally so as to inhibit a reduction in amount of ventilation in the room space, thereby room comfort can be maintained.
  • the ventilation apparatus 1a When the interruption of the energization of the ventilation apparatus 1a is resolved, the ventilation apparatus 1a starts operating to provide the amount of airflow provided before the interruption, and the control unit 33 restores the amounts of airflow of the ventilation apparatuses 1b, 1c, 1d, and 1e that have been temporarily raised by one level to the amounts of airflow provided before raising.
  • the central controller detects a ventilation apparatus that cannot perform a blowing operation due to a failure, a temporary stop, or an intermittent operation control and raises the amount of airflow temporarily by one level of another ventilation apparatus that is operating, and thereby it is possible to maintain room comfort where a shortage of the amount of airflow for the ventilation in the room space is avoided, a necessary amount of ventilation can be satisfied, and a necessary amount of fresh outside air is provided.
  • the amount of airflow of another ventilation apparatus that is operating may be raised by two levels or more.
  • FIG. 7 is a functional block diagram of a central controller in a ventilation system according to a second embodiment.
  • the configuration of the ventilation system according to the second embodiment is similar to the configuration of the ventilation system according to the first embodiment, except that the central controller 3 includes an information storage unit 31 that stores amounts of airflow that correspond to operation power of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e and that the control unit 33 switches an amount of airflow of a ventilation apparatus to be raised temporarily in accordance with the amount of airflow of another ventilation apparatus that cannot be operated temporarily.
  • the control unit 33 selects a combination of operation powers that maintains an amount of airflow for ventilation that is provided before any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e is interrupted, instead of raising by one level the operation power of all the ventilation apparatuses that are not interrupted.
  • the information storage unit 31 stores therein a necessary amount of ventilation 34 that is obtained from the volume of a room space for installation, which is calculated from the area and height of the room space, and the number of people in the room.
  • the volume information may be automatically calculated from a layout drawing of the ventilation apparatuses and air conditioners that is created in advance and height information; alternatively, space information may be input at discretion.
  • the number of people in the room may be input at discretion or may be actually measured using a human presence sensor.
  • the information storage unit 31 also stores therein amount-of-airflow information 35 at the "high”, “middle”, and “low” operation power of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • FIG. 8 is a diagram illustrating the amount-of-airflow information on the ventilation system according to the second embodiment. In FIG. 8 , selected operation powers of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are surrounded by thick frames.
  • the control unit 33 determines that a state in which the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e operate at the "middle" operation power is the steady-state operation that can maintain the necessary amount of ventilation 34 on the basis of the necessary amount of ventilation 34 and the amount-of-airflow information 35.
  • the amount of airflow for ventilation in the steady state is 2400 m 3 /h.
  • the information storage unit 31 also stores therein power consumption information 36 that indicates power consumption at each level of the operation power of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • the information storage unit 31 also stores therein operation history information 37 that indicates at which level of the operation power the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are operated for how long.
  • the information storage unit 31 is also an operation history information storage unit that stores the operation history information 37.
  • the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e are operated at the "middle" operation power in the steady state and the respective levels of operation power are switched to "high” or “low” in accordance with an air dirtiness condition in a room.
  • the control unit 33 receives abnormality information and calculates a deficit in the amount of ventilation supplied into the room on the basis of the amount-of-airflow information 35. In the second embodiment, the control unit 33 determines that the present amount of ventilation is 1900 m 3 /h and a deficit in the amount of ventilation is 500 m 3 /h.
  • the control unit 33 selects a combination of the "high”, “middle”, and “low” operation powers of the ventilation apparatuses 1b, 1c, 1d, and 1e that have no abnormality in such a manner that the combination produces an amount of ventilation that is equal to or greater than the deficit in the amount of ventilation and the closest to the deficit in the amount of ventilation. Specifically, the control unit 33 selects a combination of the operation powers of the ventilation apparatuses 1b, 1c, 1d, and 1e in such a manner that the amount of airflow increased by changing the combination is equal to or greater than the deficit in the amount of ventilation, which is 500 m 3 /h, and is the closest to 500 m 3 /h.
  • FIG. 9 is a diagram illustrating an example combination of the operation powers of the ventilation system according to the second embodiment.
  • selected operation powers of the ventilation apparatuses 1b, 1c, 1d, and 1e are surrounded by thick frames.
  • 500 m 3 /h of airflow in amount can be secured by causing the ventilation apparatus 1b to be operated at the "middle" operation power and the ventilation apparatuses 1c, 1d, and 1e to be operated at the "high" operation power as illustrated in FIG. 9 .
  • FIG. 10 is a diagram illustrating another example combination of the operation powers of the ventilation system according to the second embodiment.
  • selected operation powers of the ventilation apparatuses 1b, 1c, 1d, and 1e are surrounded by thick frames.
  • 500 m 3 /h of airflow in amount can be also secured by causing the ventilation apparatuses 1b, 1c, and 1e to be operated at the "high" operation power and the ventilation apparatus 1d to be operated at the "low” operation power.
  • the control unit 33 may select a combination that minimizes the total power consumption of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e on the basis of the power consumption information 36.
  • the control unit 33 may select a combination that minimizes the total operating time at the "high" operation power, at which the number of rotations is increased, on the basis of the operation history information 37. That is, a combination in which a ventilation apparatus that has operated at the "high" operation power for a long time is not caused to operate at the "high” operation power may be preferentially selected.
  • the control unit 33 selects a combination of the operation powers of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e on the basis of the amount-of-airflow information 35, the power consumption information 36, and the operation history information 37, thereby enabling a reduction in power consumption and equalization of the operating loads of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e while making up for a deficit in the amount of ventilation due to an interruption of any of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • FIG. 11 is a functional block diagram of a central controller in a ventilation system according to a third embodiment.
  • the configuration of the ventilation system according to the third embodiment is similar to the configuration of the ventilation system according to the first embodiment, except that the central controller 3 includes the information storage unit 31 that stores installation position information 38 that indicates the installation positions of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e and that the control unit 33 determines which of the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e should be caused to raise the operation power on the basis of the distance between the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • the information storage unit 31 is also an installation position information storage unit that stores the installation position information 38 in the third embodiment.
  • the information storage unit 31 stores therein the installation position information 38 on the ventilation apparatuses 1a, 1b, 1c, 1d, and 1e.
  • the control unit 33 assigns priority to the ventilation apparatuses in increasing order of distance from the ventilation apparatus 1a on the basis of the installation position information 38.
  • FIG. 12 is a diagram illustrating an arrangement of the ventilation apparatuses of the ventilation system according to the third embodiment.
  • the distance from the ventilation apparatus 1a increases in the following order: the ventilation apparatuses 1b, 1e, 1c, and 1d.
  • the control unit 33 causes the ventilation apparatuses 1b, 1c, 1d, and 1e to operate using a combination of the operation powers in which the ventilation apparatus 1b, which is the closest to the ventilation apparatus 1a, is operated at the "high" operation power on a priority basis. In this manner, ventilation is enabled with a large amount of airflow also in a space near the ventilation apparatus 1a that is interrupted; thus, unevenness in ventilation is eliminated in the room space and thereby comfort can be maintained.
  • the ventilation apparatus system is useful in that the ventilation system can maintain an amount of ventilation and comfort even when a ventilation apparatus that cannot be used temporarily due to a failure or an abnormality is present in a room space, and is particularly suitable for use as a system that provides ventilation in an office, a school class room, or other spaces in which a plurality of ventilation apparatuses and a central controller are placed.
  • 1a, 1b, 1c, 1d, 1e ventilation apparatus 2a, 2b, 2c, 2d, 2e control circuit; 3 central controller; 4 communication cable; 5a, 5b, 5c, 5d, 5e fan; 6a, 6b, 6c, 6d, 6e local remote controller; 19 processing circuit; 19a program; 31 information storage unit; 32 communication unit; 33 control unit; 34 necessary amount of ventilation; 35 amount-of-airflow information; 36 power consumption information; 37 operation history information; 38 installation position information; 41 communication device; 191 arithmetic unit; 192 memory; 193 storage device.

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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)
EP15910179.9A 2015-12-07 2015-12-07 Belüftungssystem und steuergerät Withdrawn EP3388754A1 (de)

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PCT/JP2015/084304 WO2017098562A1 (ja) 2015-12-07 2015-12-07 換気システム及びコントローラ

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JP (1) JPWO2017098562A1 (de)
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WO (1) WO2017098562A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4261466A4 (de) * 2020-12-08 2024-01-17 Mitsubishi Electric Corporation Vorrichtung zur anzeige von belüftungsinformationen

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WO2021260925A1 (ja) * 2020-06-26 2021-12-30 三菱電機株式会社 室内機
TWI799745B (zh) 2020-10-16 2023-04-21 研能科技股份有限公司 室內空汙防治解決方法
CN114383290A (zh) * 2020-10-16 2022-04-22 研能科技股份有限公司 室内空气污染防治解决方法
JP7335289B2 (ja) * 2021-03-31 2023-08-29 株式会社大気社 換気システムおよび換気方法

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JP3222713B2 (ja) * 1995-01-20 2001-10-29 株式会社日立製作所 原子力発電所の換気空調設備
JP2003065588A (ja) * 2001-08-27 2003-03-05 Hitachi Ltd 空気調和装置
US7597534B2 (en) * 2003-03-20 2009-10-06 Huntair, Inc. Fan array fan section in air-handling systems
JP4298488B2 (ja) * 2003-12-05 2009-07-22 三菱電機株式会社 換気システム及び換気機能付き住居
KR100940021B1 (ko) * 2007-10-25 2010-02-03 주식회사 경동나비엔 환기장치
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JP5577231B2 (ja) * 2010-12-27 2014-08-20 東京瓦斯株式会社 厨房換気装置
JP5602118B2 (ja) * 2011-10-13 2014-10-08 三菱電機株式会社 換気機器の制御システム
JP5533973B2 (ja) * 2012-10-10 2014-06-25 ダイキン工業株式会社 調湿換気装置
JP5668766B2 (ja) * 2013-02-07 2015-02-12 ダイキン工業株式会社 換気装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4261466A4 (de) * 2020-12-08 2024-01-17 Mitsubishi Electric Corporation Vorrichtung zur anzeige von belüftungsinformationen

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Publication number Publication date
EP3388754A4 (de) 2018-10-17
HK1254548A1 (zh) 2019-07-19
CN108291731A (zh) 2018-07-17
JPWO2017098562A1 (ja) 2018-03-08
WO2017098562A1 (ja) 2017-06-15

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